Pajero NK87 petrol guage not working, shows empty even when tank is full

Make sure dash guage is working,,," moves when key is turned on,,,,The sending unit in the tank is bad or has came disconnected,,,it will need replaced,,, if it shows full bad sending unit,,, if it shows empty the ground wire is off or damaged,,,,,unless the guage in the dash is bad,,, chevy has had a world of problems with there dashes,,i would think its the dash guage

It could be the sending unit in the tank or the gauge on the dash. A mechanic would test the signal coming from the sending unit to verify.

Hi I have a Pajero 2002 (2003 model) GDI. Why engine stops, when I slowdown? I'v replace the petrol tank filter some time back & did a full checkup, computer shows ok, Can any one help me?

Digital gauge also gets its input for fuel level from a float in the tank. Here the culprit can be that float because the error is systematic i.e., full on empty and empty on full/half. If the reading was erratic then it was something to do with IC in the bars display panel.

The fuel sender unit could be faulty. It says 1/4 tank even though it is almost empty. Carry a jerry can of gas in the back , and run it down to 1/4 or less to see if the problem repeats itself.
The gas guage and trip computer are only as accurate as the float in the tank.

should be a grey wire going to the top of fuel tank connects to fuel guage / when the guage in the tank reads grounded it shows full , no ground it shows empty. if you ground that grey wire and the guage jumps to full then faulty guage if nothing maybe bad ground on the tank itself. the guages are a reostat like a tyco race car gun the more it moves the more it grounds .. good luck

sounds like the float is either got a hole in it and is full of fuel, or the whole float assembly is seized in the empty position.
was the car left for 5 weeks empty of fuel?

Hi
We have the same truck that does the same thing.
The fuel sender in tank is faulty. It is in your gas tank. Common chevrolet problem.

you can check to see if your guage is getting electricity to it with a test light first and foremost, and then use a wire to directly give it electricity without it being connected to the harness itself and see if it moves too, if it moves with giving it electricity then it's not the guage itself... then check the wires at the tank to see if the harness is getting electricity there. if it is and the guage isn't moving when you wiggle the harness, drop the tank and replace the assembly as a unit that goes inside the tank that has the float attached that makes the guage work.